Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwA7nGgMNjYHnHwwkAOVZALd2FhBbbdKPnU7qYSDp7K5WmW4v7UKOAK3rzxA… (844 chars)"
  }
}